APA (7th ed.) Citation

National Geographic Society (U.S.). (1997). National Geographic Magazine on CD ROM [. National Geographic Interactive.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.). National Geographic Magazine on CD ROM [. Washington, D.C.: National Geographic Interactive, 1997.

MLA (9th ed.) Citation

National Geographic Society (U.S.). National Geographic Magazine on CD ROM [. National Geographic Interactive, 1997.

Warning: These citations may not always be 100% accurate.